No QA is better than bad QA. I've had great QA teams and just awful QA teams. Most of them are somewhere in the middle. I'll take no QA over bad QA every time. Filing bugs that aren't bugs, not understanding the most basic things like what a Jpeg file is for a product centered around images, etc. QA for the sake of QA doesn't always yield results, and can cause a lot of distraction for a competent dev team.